Search a number
-
+
3213012105 = 3253713913883
BaseRepresentation
bin1011111110000010…
…1010110010001001
322021220211221000100
42333200222302021
523040012341410
61250454000013
7142423103142
oct27740526211
98256757010
103213012105
1113a9730606
12758046009
133c28763c4
14226a14ac9
1513c11d8c0
hexbf82ac89

3213012105 has 48 divisors (see below), whose sum is σ = 5761304640. Its totient is φ = 1655178624.

The previous prime is 3213012079. The next prime is 3213012137. The reversal of 3213012105 is 5012103123.

3213012105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3213012105 - 26 = 3213012041 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 224494 + ... + 238376.

It is an arithmetic number, because the mean of its divisors is an integer number (120027180).

Almost surely, 23213012105 is an apocalyptic number.

It is an amenable number.

3213012105 is a deficient number, since it is larger than the sum of its proper divisors (2548292535).

3213012105 is a wasteful number, since it uses less digits than its factorization.

3213012105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14070 (or 14067 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 3213012105 is about 56683.4376603960. The cubic root of 3213012105 is about 1475.6072734532.

Adding to 3213012105 its reverse (5012103123), we get a palindrome (8225115228).

The spelling of 3213012105 in words is "three billion, two hundred thirteen million, twelve thousand, one hundred five".

Divisors: 1 3 5 9 15 37 45 111 139 185 333 417 555 695 1251 1665 2085 5143 6255 13883 15429 25715 41649 46287 69415 77145 124947 208245 231435 513671 624735 1541013 1929737 2568355 4623039 5789211 7705065 9648685 17367633 23115195 28946055 71400269 86838165 214200807 357001345 642602421 1071004035 3213012105